Problem with centre console on E 250 coupe 2013 Model Sat Nav/Comand system, cd, clock etc etc

[Jinky123]

Cold morning around 4 weeks ago, temperature -4 started car as normal and then noticed clock advancing 1 hour on it's own volition !
At the same point Mercedes logo then Comand alert come onto central screen as normal, centre console lights up and radio comes on.
These systems then all start then turn on and off intermittently, only the radio works now and only on one station as you cannot navigate using the silver button by the central armrest.
So no sat nav, cd, radio or any other controls, have checked fuses and replaced battery with a new one as advised earlier, clock still advances 1 hour after battery replaced.
Other than that the car operates as normal.
Live in North East of UK car is 2013 E 250 CDI

Best Regards,
Paul

 

[markjay]

If your car is the face-lift W212, and assuming it's a saloon and not a coupe or cabrio, then it will have COMAND Online NTG4.5 (or, rather. 4.7).

Replacing this system needs to be done by a specialist due to issues relating to antitheft code and maps code.